Respuesta :

Answer:

They should all be 90.

Step-by-step explanation:

This is because lines n and m are perpendicular and perpendicular lines make 90 degree angles.

Please comment if you need me to elaborate. ^_^

Answer:

B. 90, 90, 90, 90

Step-by-step explanation:

The other answers cannot possibly be correct, and the angles look to be 90 degrees.

Hope this helps :)